Spinning and twisting frame.



P. SARACCO. SPINNING AND TWISTING FRAME. APPLICATION FILED 3111.18,1913.

Patented May 12, 1914.

Ir /Ni mm .\\In\ vmxouluvu co" WASHINGTON. n. c

"UITE;

SPINNING AND TWISTING FRAME.

To all whom it may concern Be it known that I, PIETRo SARAOCO, a subjectof the King of Italy, residing in Turin, in Italy, have invented certainnew and useful Improvements in Spinning and Twisting Frames, of whichthe following is a specification.

This invention relates to a spinning and twisting frame in which thespools on which the thread is wound, are given a double movement ofrotation about their spindles and of gyration or revolution about anintermediate axis, so as to effect at the same time the twisting of eachthread as well as the twisting of the different threads together. Tothat end, the spools are mounted on a rotating supportand are forced toroll during the revolution of their spindles, on a rim which in its turnis rotating, so that by regulating the two rotations, any desired twistcan be obtained.

In the accompanying drawing, Figure 1 shows in vertical section aconstruction of an apparatus according to this invention, Fig. 2 being aplan and Fig. 8 showing a modified construction.

As will be seen from these figures, the support 1 for the spools issecured to a spindle 2 to which is keyed a pulley 3 or a conical pulleyfor transmitting the motion. On the spindle 2 is rotatably mounted a box4 provided with a pulley 5 or with a conical pulley for thetransmission. The rods 6 to which are secured in the well known mannerthe spools of thread, are mounted in socket bearings 7 and have keyed tothem disks 8, the rims of which, provided with a lining or packing ofrubber, leather or hard material such as fiber, metal, etc., can comeinto contact with the inner surface of the circular rim .0 of the box 4.The bearings 7 of the spindle 6 are mounted in the supporting plate 1and pass through radial slots 11 in which they are guided (Fig. Ihesupport for these socket bearings can be constituted, as shown by way ofexample in Fig. 1, by a rod 12, to the bottom end which is pivoted theend of the bearing. A screw 13 is used for'fixing the extreme outwardposition which the bearing can assume in the slot 11, and in that way itis possible to regulate the pressure of the lining or packing 9 on therim 10. In any case, 1t 1s advantageous that when the plate 1 is stand-'Specification of Letters Patent.

Application filed. January 18, 19 13.

Patented May 12, 1914.

Serial No. 742,968.

ing still, the bearings maybe in such position that the spindles 6 arenear the center, and that the packing 9 of the disks 8 is not in contactwith the surface of the rim 10. To that end can be arranged springs 14normally pushing the bearings 7 toward the intermediatespindle (Fig. 3)or having the tendency to give them a position inclined toward thecenter of the apparatus. It is also possible more simply to use aneccentric method of mounting the bearing as shown in Fig. 1, so that itsweight has the tendency to incline it toward the axis of rotation of thepivot 2. In any case, when the support 1 is stationary, the spindles 6with their spools are also stationary for owing to the position of thebearings 7 the rims 9 are not in contact with the rim 10 of the box a.When however the pivot 2 is rotating, centrifugal force brings thebearings 7 into the position in which the pack ing 9 of the disks 8adheres to the surface of the im 10 and rolls on it, producing at thesame time rotation of the spools about their spindles, while thespindles 6 rotate about the central spindle of the support 1. Byadjusting the speed of rotation of the support 1 and of the box 4: whichgenerally speaking must rotate in the same direction, any desiredproportion will be obtained between the twisting of each individualthread and the twisting of the complete yarn.

The described method of mounting the bearings for the spindles of thespools, so that the rims 9 of their disks are brought into contact withthe rim 1O merely by the action of centrifugal force, has the advantageof enabling the spools to be automatically stopped by stopping therotation of the pivot 2, so that only one gear has to be operated, whileit is possible, owing to the rotation of the box 4, to regulate at willthe twist given to the thread.

lVhat I claim as my invention and desire to secure by Letters Patentis 1. In a spinning and twisting machine, the combination with arotating support having radial slots, of bearings adapted. to move insaid slots, means whereby said bearings move away from the outer wallsof the slots when the support is standing still, spindles mounted torotate in said bearings, friction disks on said spindles, an outer rimadapted to be engaged by the friction disks when the support isrotating, and means for rotating the rim independently of the support.

2. In a spinning and twisting machine, the combination with a rotatingsupport having radial slots, of step bearings extending downward throughsaid slots and supported pivotally and eccentrically at their lowerends, spindles mounted to rotate in said bearings, friction disks onsaid spindles, an outer rim adapted to be en gaged by the friction diskswhen the sup port is rotating, and means for rotating the rimindependently of the support.

3. In a spinning and twisting frame, a rim, means for driving the rim, aspindle co-axial with the rim and means for driving the spindle, amember in the interior of the rim and connected to the spindle, means onthe member adapted to bear spindles on which the spools are secured,friction disks on the spindles adapted to run on the inner wall of therim when the central spindle is in rotation, and means whereby thefriction disks move out of contact with the inner wall of the rim whenthe apparatus is at rest.

4. In a spinning and twisting frame, an outer box having a rim, meansfor driving the box, a spindle co-aXial with the box and means fordriving the spindle, a member mounted in the interior of the rim andconnected to the spindle, means on the member adapted to bear spindleson which the spools are secured, friction disks on the spindles adaptedto run on the inner wall of the box-rim when the central spindle is inrotation, and means whereby the friction disks move away from the innerwall of the rim when the apparatus is at rest.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

PIETRO SARACCO.

Witnesses CAnLo ToR'rAn, JOCELYN GOUBEYRAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

